Strong clinical program, like DrTaco said. They're in the process of building new DentSim labs. Another thing I liked is that you get to take the boards after your first year while all the info is still fresh in your memory.
The interview process itself was really laid back, and went almost exactly as DrTaco said. The lunch with the 4th years DOES count as an interview. They don't get to sit in with the adcom when it comes time to look at your application, but they submit reviews for the adcom to look at.
I had no problems with the parking attendants. They were actually all very nice. Probably because I'm a chick.
Good luck with the interview!